Alloy bearing.



UNITED STATES rATENT OFFICE.

HENRY x. s'ANDELL, or CHICAGO, ninmors, assrenon TO HERBERT s; mums, or

- cnrcaeo, ILLINOIS.

ALLOY BEARING.

No Drawing.

To all whom it may concern.

Bait known that I, HENRY K. SANDELL, a citizen of the United States, residin at Chicago, in the county of Cook and t'ate of Illinois, have invented a newand useful Improvement in Alloy Bearings, of which the following is a specification.

My invention relates to certain improvements in journals, or bearings. More particularly, the invention -.is concerned with a metallic alloy which is peculiarly advantageous in such uses, exhibiting as it does in actual practice the properties of low frictional resistance and-long life.

The alloy in question consists of copper and antimony, in substantially the-proportion of two parts (by weight) of the former, to one part of the latter, together with a smaller proportion of lead, and preferably in addition thereto a percentage of nickel.

For example, I find'that for use as a bearing-bushing for supporting the steel shaft of a 10 K. W. dynamo electro machine turning about 1800 R. P. M., the following composition is desirable.

Copper 4 Antimony -i. 2 Lead 1 Nickel 1' In general, it appears that the antimony possesses the propert of crystallizin the copper, thereby great y increasing the ard ness of the compound and lowering the frictional resistance.

Patented Apr. 17, 1917.

Application filed June 19, 1916. Serial N o. 1 04,458.

plays no tende acy to overheat, does not itself score, nor score its shaft, and is in all respects satisfactory for use as a bearlngbushing operating under sliding friction,

either entirely without lubrication, or with very little lul rication at moderate bearing pressures and high speeds.

What I claii n as new, and desire to secure by Letters Patent, is:

1. A bearing comprising substantially fifty per cent. of copper, twenty-five per cent. of ar timony and proportionate amounts of le: Ld and nickel.

2. A hearing formed of an alloy comprising relatively large proportions of copper, antimony and an additional constituent which will inc rease the tensile strength.

3. A bearing formed of an alloy consisting of four arts (by weight) of copper, two parts of intimony, one part of nickel, and one part of lead.

HENRY K. SANDELL. 

